Nelson Hwynn, DO
NPI 1699814632 · Neurology Physician · La Jolla, CA
Enrolled with Medicare as Practitioner - Neurology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nelson Hwynn, DO is a Neurology Physician provider in La Jolla, CA (NPI 1699814632).
Provider details
- NPI number
- 1699814632
- Entity type
- Individual
- Primary specialty
- Neurology PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 12-2006 (NM)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
1,940 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 484 | $17 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 353 | $135 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 299 | $189 |
| Needle Measurement of Electrical Activity in Arm Or Leg Muscles, Complete Study95886 | 216 | $106 |
| Injection of Chemical for Paralysis of Nerve Muscles on Side of Neck Excluding Voice Box64616 | 64 | $201 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 37 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Carbidopa/Levodopabrand: Carbidopa-Levodopa | 315 | 106 |
| Gabapentin | 224 | 66 |
| Carbidopa/Levodopabrand: Rytary | 195 | 50 |
| Donepezil Hcl | 175 | 50 |
| Clonazepam | 123 | 25 |
| Primidone | 87 | 32 |
| Carbidopa/Levodopabrand: Carbidopa-Levodopa Er | 82 | 24 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$6,855 across 251 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 15004 Innovation DrSan Diego, CA 92128-3491Phone: (858) 605-7905
Registry dates
- Enumerated
- 2007-02-06
- Last updated
- 2019-11-08
Frequently asked questions
- What is Nelson Hwynn's NPI number?
- Nelson Hwynn's National Provider Identifier (NPI) is 1699814632, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nelson Hwynn's specialty?
- Nelson Hwynn is listed in the NPPES registry with a primary specialty of Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is Nelson Hwynn located?
- Nelson Hwynn's practice location on file with NPPES is 10666 N Torrey Pines Rd, La Jolla, CA 92037-1027.
- What is Nelson Hwynn's phone number?
- The practice phone number listed in the NPPES registry for Nelson Hwynn is (858) 554-8895.
- Does Nelson Hwynn accept Medicare?
- Nelson Hwynn is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nelson Hwynn's NPI active?
- Yes — Nelson Hwynn's NPI (1699814632) is active in the NPPES registry as of the last update on 2019-11-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.